At present, there is no evidence that hunger therapy can treat gastric diseases, and this practice lacks scientific basis. Gastric diseases mainly include chronic gastritis, peptic ulcer, gastric cancer and other diseases, patients are mainly accompanied by increased secretion of gastric acid and gastric mucous membrane damage, which will affect the normal digestion and absorption function, resulting in reduced absorption of nutrients, and even induced malnutrition. Although when the human body is in a state of hunger, the secretion of gastric acid will be inhibited to a certain extent, but when in a state of too much hunger, it will not only lead to hypoglycemia, low blood pressure, etc., but also stimulate the secretion of gastric acid to increase, which is not conducive to the recovery of the disease, and even aggravate the gastric disease. At the same time, long-term starvation will also cause insufficient nutrient intake, aggravate malnutrition, may also lead to gastrointestinal hormone metabolism disorders, the recovery of gastric disease does not have a supporting role. At present, the clinical treatment of gastric disease is mostly through the improvement of lifestyle and dietary habits, taking drugs and other methods, such as avoiding cold, spicy and other stimulating foods, quit smoking and drinking, avoid overeating, eat less and more often, but also to take omeprazole, bismuth potassium citrate, magnesium aluminum carbonate, domperidone and other drugs. Gastric disease patients are recommended to seek timely medical treatment, actively accept treatment, not to abuse the starvation therapy, drugs must be strictly in accordance with the doctor’s instructions to take medication, not self-medication, so as not to delay or even aggravate the condition.